1.0 INTRODUCTION
The term poultry used in agriculture generally refers to all domesticated birds kepts for egg or meat production. These includes chickens (domestic fowls), Grallus domestics, turkeys, ducks and geese. This project will deal largely with the chicken which are the most common domestic fowl. The species of poultry are aptable or can survive in different environments therefore, they are widely distributed in the world, with great increase in population, the demand for goods especially protein food become acute. To meet the demand for animal protein and its development, rapid multiplying ones becomes very necessary. Poultry has so many advantages over other domesticated animal whose production is very much hindered by lack of money, high temperature, disease and lack of good at certain periods of the year.
The diseases of poultry is like the disease of other animals may be caused by: a. pathogenic organisms like bacteria and viruses, protozoa, worms and some members of arthropods
b. Nutritional deficiency, (c) From wound or cannibalism
The following diseases are usually associated with the fowls locally
1. New castle disease
2. Chronic respiratory diseases
3. Fowl typhoid
4. Coccidiosis
5. Fowl pox
The incidence of salmonella and Escherida coli simply means the extent to which the enteric organisms (Escherichia coli) that are part of the normal flora and incidentally causes disease and pathogenic organism (salmonella) affect the poultry feeds. Hill, D.H; and Davis, O.s; (1962). Shoening et al 1942). Defined diseases as any abnormal condition of the tissue of the body, the cells that make up the various tissue have specific functions to perform. Pekzar et al (1977) defined Salmonell is as a disease of the chick fowl and swim bird cause by some species or Salnaonells.
Anon (1963) described pullorum disease as an actute infection disease of body chicks caused by salnonella pullorum. Infection is the entering of the disease produces organisms into the animal.
Livestock (Poultry )gets infected when pathogenic organisms passes to the susceptible animal through the through the following avenues. Esmat.omar 1977.
1. Feeds and contaminated water feed or water containing droppings or waste products of diseased animal will help spread the organisms to fresh hosts. The feeding troughs and watering vessels aso spread the diseases if not seperated.
2. Dropping or excretes: These material are the gateway out for some stages of oarganisms to go out of the host and get to fresh animal hosts.
3. Close contact – some disease spread by contact. Their agents may be external parasites or air borne in which case nearness to the superior’s birds increase the changes of getting the organisms
4. To or event the disease pathogenic organism from getting into the body of poultry, attention should be payed to those factors that influence their infections and spread. First and foremost, they should have disease resisting stock, provide good shelter, clean range, proper feeding and practise separating the unhealthy ones from the healthy poultry, quarantining new stock. In case of poultry, the brooder house should be 30m to 48m from old birds. Such that they gets good feed and sunlight. They should act be allowed to get in contact with their droppings or excretes since their dropping carry the pathogenic organisms. Sanitation is very important in poultry management by cleaning of water cans and feed troughs and finally disinfecting the stock to help reduce organic matter.